Tool for removing paint, varnish, lacquer, shellac, etc



F. J. SCHULZ 2,107,220

TOOL FOR REMOVING PAINT, VARNISH, LACQUER, SHELLAC, ETC

Feb. 1, 1938.

2 Sheets-Sheet 1 Filed Nov. 22, 1935 3 7 /12/74 ci cj caja SKIN/MM Feb. 1, 1938. F. J. scHuLz 2,107,220

TOOL FOR REMOVING PAINT, VARNISH. LACQUER, SHELLAC, ETC

Filed Nov. 22, 1955 2 Sheets-Sheet 2 Patented Feb. 1, 1938 UNlfTEDST-ATES 'rooi. Fon REMOVING mnv'r, vaams'n, 1

. 4 H MCQUER, SHELLAC, ETC.

' Frank J. Schulz, Rochester, N. Y.-

mums. November 22, 1935, Serial 'No. 51,150

2 Glaims.

This invention relates to certain new and useful improvements in tools for removingpaint, varnish, lacquer, shellac, barnacles or other surface coatings or coverings.

The primary object of the invention is to provide a tool for removing paint, varnish and the like from wood or other surfaces with the head of the tool in form of a scraper blade, with the head heated in any desired manner, preferably electrically and raised to a temperature whereby the paint, varnish or the like may be easily removed.

A further object of the invention is to provide a tool of the foregoing character wherein v the head or heated scraper is removably attached to the body or handle of the tool and may be of any size, shape or configuration desired for accomplishing a special purpose, the tool head having a blunt or sharp edge that is heated to a degree to effect removal of paint, varnish or the like, but which .is operated without burning or marring the surface that is coated by the material to be removed.

With the above and other objects in view that will become apparent as the nature of the invention is betterunderstood, the same consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimed.

In the drawings:--

constructed in accordance with the present invention showing the blade-like form of scraper head and a heat radiating section interposed between the scraper head and handle;

Figure 2 is a side elevational view of the tool ,shown in Figure 1; Figure 3 is a perspective view more clearly showing the arrangement of heat radiating fins Figure 4 is a detail sectional view showing the screw mounting for the removable scraper head' and an electrical resistance element therein;

Figure 5 is a side elevational view of another form of heated scraper tool, showing a horizontal bore in the scraper head for reception of an electrical resistance element or cartridge;

Figure 6 is a front elevational view, partly in section of the tool shown in Figure 5; and

Figure 'l is a detail sectional view showing the heat radiating element interposed between the handle and scraper head with the latter removably attached to the heat radiating element. Referring more in detail to the accompanying drawings, and particularly to Figures 1 to 4, there is illustrated an electrically heated tool Figure 1 is a front elevational view of a tool for the removal ofvpaint, varnish,lacquer, shellac etc., iromwood or. other surfaces and operative without burning or otherwise marring the surfaces from which the coatings are to .be removed, the tool comprising a handle l through the outer end of which a heat radiating section II is attached and in the form f a plurality of fins comprising a series of spaced disks I2 connected by radial webs l3.arranged in staggered relations between the disks for the more effec 10 tive dissipation of heat, the heat radiating section H being generally of cylindrical formation.

The radiator is of such construction and dey sign that it is necessary for the heat to travel transversely across a fin or disk before coming toa cross connecting web which is purposely of suchsmall area as to obtain optimum cooling surface on each fin as well as to transfer a minimum of heat to succeeding fins. Through the inclusion of a number of similar fins each fin joined to the one preceding it by the small con nect-ing webs which are, spaced in such a way as to continue the transverse course of the heat in each fin, it is possible to reduce the amount of heat atthe handle to a negligible quantity. A hollowshank l4 shown more clearly in Figure 4 has an apertured annular flange ii at its inner end to facilitate attachment to'fthe outer end of the heat radiating section II and the handle iii and heat radiating section II having 0 aligned axial bores therein for the passage of anelectrical conductor l6 that is in electrical communication with a resistance element or cartridge I! mounted within the longitudinal bore of the shank I. The outer end of the shank I4 is annul'arly reduced to provide an externally threaded nipple 18 for threaded reception in a socket formed in the removable tool head It that has its outer end flattened and sharpened if desired to constitute a scraping blade. A recess 20 is formed in the tool head 19 and the resistance element I1 is of a length to extend through the nipple I! and into the recess 20 as shown in Figure 4 for the more effective heating of the tool head l9. It will be understood that the tool head i9 may be removed f om the shank i4 and a head of any desired configuration substituted therefor. The head I9 is adapted to be theradiating section 2!. 'Ihehandle II is formed of two sections 24 having a pair of plates 2| interposed therebetween with the adjacent edges the plates parallel and spaced iromeach other to provide a central name through the handle Ii'for the electrical conductor. As shown in 8,'screw devices 21 effect a connection between theouter end of the handle 2i and the inner end of theheat radiating section 22. The outer 'otthe .heat radiatingl section is providediwith a transversely extending "groove 20 that receives a similarly shaped rib 20 pro- Jecting from the inner end of the toolhead 23 anchor screws 30 passing through the outer end of the heat radiating section'ior engagement with the rib to secure the head in position. An axial bore is formed in the heat: radiating section 2210:- the passageoi' theconductor 28 which also passes through an opening ii: in the rib 20 for communication with a resistance element or cartridge 12' removably mounted in a transverse opening "in the tool head It.

From theabove detailed description of the iniv'ention, n is believed that the construction and usethereoiwill at once .be'apparent. and while there are herein shown and described the preierred embodiments of the invention. it is nevertheless to be understood that changes may be made therein wlthoutfdeparting from the spirit andscope ol the invention as claimed.

I claim:

1. In a tool ior removing paint, etc., irom wood and other surfaces, a handle, a heat. radiating element secured to the outer end of the handle,

a tool head oiscraper-blade formation detachably connected to the outer end of the radiator,

and having an opening extending completely therethrough and transversely thereof, an electric resistance element permanently mounted in said opening in the removable head in spaced relation to the heat radiating element and an electrical conductor extending through the handle and heat radiating element for direct at-, tachment to the resistance element;

2. In a tool of the type set iorth in claim 1, characterized by the heat radiating element including a plurality of spaced, pla

radial ribs connecting the plates. g

tea and staggered r 

